Consistency requires that our priors reflect all information at hand, but should otherwise be minimally informative.
For ancestral vacua, we advocated the uniform prior \(p_\alpha = 1/N_{\rm dS}\)  as a conservative choice, though our
conclusions are fairly insensitive to this choice. What matters is that the initial conditions have support over
high-energy/low-entropy vacua. For the time of nucleation, we argued that a quasi-uniform prior is a natural choice, consistent with the time-translational
invariance of the master equation. It represents the minimally-informative prior. The resulting predictive probability distribution
matches the prior probabilities of [1]} and is closely related to the “comoving" probabilities discussed in [2]}, [3]}.
